TW201220917A - Legacy-compatible control frames - Google Patents

Abstract

Certain aspects of the present disclosure provide techniques and apparatus for using different MAC addresses in frames for the same station to indicate how to process the frames. In this manner, frames for IEEE 802.11ac can carry information not present in legacy frames (e.g., frames according to IEEE 802.11a/n), but these frames may be interpreted by legacy devices in a legacy way. One example method generally includes receiving a first frame comprising an indication of a first MAC address and processing the received first frame based on the first MAC address. For certain aspects, the method further includes receiving a second frame comprising an indication of a second MAC address, wherein the second MAC address is different than the first address; and processing the received second frame based on the second MAC address, such that the processing of the second frame is different than the processing of the first frame.

Description

201220917, STATEMENT OF RELATED APPLICATIONS: CROSS-REFERENCE TO RELATED APPLICATIONS RELATED APPLICATIONS RELATED APPLICATIONS RELATED APPLICATIONS The way it is incorporated into this article. FIELD OF THE INVENTION [Some aspects of the present disclosure relate to wireless communication, and more specifically to the use of different media access in a frame for the same device (eg, 'user terminal') The control (MAC) address is used to indicate how to process the frames. [Prior Art] In order to solve the problem of increasing bandwidth requirements required by wireless communication systems, different schemes are being developed to allow multiple user terminals to communicate with a single access point via shared channel resources while achieving high data throughput. . Multiple Input Multiple Output (MIM0) technology represents a recently emerging approach to popular technology for next generation communication systems. MIM(R) technology has been adopted in some of the emerging wireless communication standards such as the Institute of Electrical and Electronics Engineers (IEEE) 802.u standard. ΙΕΕΕ 8〇21丨 represents a set of wireless local area network (WLAN) airborne/surface standards developed by the IEEE 802.11 committee for short-range communications (eg, tens of meters to a few hundred meters). 1 The system uses multiple transmit antennas and multiple (~) receive antennas for data transmission. By ^^ a transmitting antenna and a ^

The ΜΙΜΟ channel formed by the S 4 201220917 line can be decomposed into independent channels, which are also referred to as spatial channels. Each channel in an independent channel corresponds to one dimension. The system can provide improved performance (e.g., higher throughput and/or higher reliability) if additional dimensions established by multiple transmit and receive antennas are used. In a wireless network with a single access point (ΑΡ) and multiple user stations (STa), in parallel, in the uplink and downlink directions, parallelism may occur on multiple channels to different stations. transmission. There are many challenges in such systems. SUMMARY OF THE INVENTION Broadly speaking, certain aspects of the present disclosure relate to using different media access control (MAC) addresses in a frame for the same device (eg, a user terminal) to indicate what to do (eg, , Interpret and Analyze) The frames "In this way, frames for IEEE 802 llac can carry traditional frames (for example, according to IEEE 802.1 1a or 802.11n at 802, Uae before IEEE 8〇) Information that does not exist in the 2.u standard revision of the frame, but such frames can be interpreted by conventional devices in a conventional manner. Certain aspects of the present disclosure provide a method for wireless communication. In a generalized manner, the method includes: receiving, at a device, a first frame, the first message includes an indication of a first MAC address; and parsing the received first frame based on the first MAC address . Some aspects of the valley in this case provide a means for wireless communication. General

S 5 201220917, the farm includes: a receiver configured to receive a first frame 'the first frame includes an indication of a first MAC address; and, a processing system, the processing system The first frame is configured to parse the received based on the first MAC address. Some aspects of the present disclosure provide an apparatus for wireless communication. In summary, the device includes: means for receiving a first frame, the first frame includes an indication of a first MAC address; and, for parsing the received first based on the first MAC address The component of the frame. Some aspects of the case in this case provide a computer program product for wireless communication. In general terms, the computer program product includes computer readable media having instructions executable to: receive a frame at a device, the frame including a frame indicating an indication of a MAC address; The received frame is based on the MAC address. Some aspects of the present content provide a wireless node. Broadly speaking, the wireless node comprises: at least one antenna; a receiver configured to receive a frame via the at least one antenna, the frame comprising a sum of MAC addresses, & processing system The processing system is configured to parse the received frame based on the MAC address. [Embodiment] Various aspects of the present contents will be described more fully hereinafter with reference to the accompanying drawings. However, the content of this case may be embodied in many different forms and should not be construed as limiting any structure or function provided in the context of the present disclosure. Conversely, the provision is made such that the content of the case becomes 6 201220917 And complete, and will fully convey the scope of the present content to those skilled in the art. Based on the teachings herein, those skilled in the art will appreciate that the scope of the present disclosure is intended to cover any of the content disclosed herein, regardless of whether it is independent of any other aspect of the present disclosure. Any other aspect of the combination is achieved. For example, it is possible to: implement an apparatus or implement a method using any number of aspects referred to herein. In addition, the scope of the present disclosure is intended to cover such an apparatus or method that can be implemented using other structures, functions, or structures and functions in addition to or in various aspects of the disclosure provided herein. . It should be understood that any aspect of the disclosure herein may be embodied by one or more elements of the request. "Word factory" is used herein to mean "as an example, instance = explicit". Any aspect described herein as "exemplary" is not necessarily to be construed as preferred or preferred. The specific aspects are described, but the various variations and combinations of the aspects fall into the aspects of the content of the case. However, the second content of the case is limited to the specific benefits. It is intended to be broadly applicable to non-intentional situations. On the contrary, the various aspects of the content of the case and the transmission agreement, the wireless technology, system configuration, network of the above = and in the preferred aspect = 曰 exemplary way in the figure . The detailed description and drawings are to be regarded as the Enclosures Exemplary wireless communication system 201220917 The technology described in this paper can be used in a variety of broadband wireless communication systems, including communication systems based on the right parent. Examples of such communication systems include a sub-space multiplex access (SDMA) system, a time division multiplex access (TDMA) system, an orthogonal frequency division multiplexing access (〇j?DMA) system, and a single carrier frequency division. Multiple Access (SC-pDMA) system, etc. SDMA systems can take advantage of different directions to simultaneously send data belonging to multiple user terminals. The Τ〇μα system can divide the transmission signal into different time slots to allow multiple user terminals to share the same frequency channel, and each time slot is assigned to a different user terminal. The OFDMA system utilizes orthogonal frequency division multiplexing (〇FDM), which is a modulation technique that divides the entire system bandwidth into a plurality of I-subcarriers. These _input carriers can also be called tones, frequency bands, and the like. With OFdm, each subcarrier can be modulated independently using data. Sc_fdma system. First, you can use the parent error's fdma ( ifdma ) to transmit on the system bandwidth distribution = secondary carrier, use local FDMA ( lfdma ) to send on the block of the adjacent secondary carrier 'or use enhanced Cong Ba ( The chest is called to transmit on multiple blocks of adjacent subcarriers. Typically, the hash number is transmitted in the frequency domain using the calendar, and (4) SC_FDMA transmits the modulation symbols in the time domain. The teachings herein may be incorporated (for example, in Implemented internally or by this: in a wired device or a wireless device (eg, a node). At -=, a wireless node implemented in accordance with the teachings herein may include an access point or an access terminal. AP, _P h Helmet Reconstruction") includes, is implemented as 'or Node B, ... line grid controller ("Site Controller ("BSC) U (eNB), base)), base station transceiver Machine ("BTS"), base station 201220917 ("TF"), radio router, radio transceiver, basic service set ("Caf"), extended service set ("ess"), radio base station ("RBS") or Some other term. Access terminal ("A T") may be included, implemented as, or referred to as a station user station, a subscriber unit, a pole station (MS), a remote station, a remote terminal,

User terminal (UT), user A user agent, user equipment, user equipment (UE), user station or some other terminology. In some implementations, the access terminal can include a cellular phone, a wireless phone, a Session Initiation Protocol ("SIP") phone, a wireless zone loop ("Hungry") station, a Personal Digital Assistant (PDA), and wireless connectivity. Handheld device, tablet or some other suitable processing device connected to the wireless data modem. Thus, one or more aspects taught herein can be incorporated into a telephone (eg, a cellular/telephone or a transit telephone), a computer (eg, a laptop), a portable communication device, a portable computing A device (eg, a profile assistant), entertainment (eg, music or video device or satellite radio), a global positioning system (GPS) device, or any other suitable device configured to communicate via wireless or wired media. In some aspects, the node is a wireless node. For example, such wireless nodes may provide connectivity or provide connectivity to the network (eg, such as the Internet or a hive) via a wired or wireless communication link for a network (eg, a wide area network such as the Internet or a cellular network). Connectivity of a wide area network such as a network. 1 illustrates a multiplex access multi-input multi-input (_〇) system with a access point and a user terminal. For the sake of simplicity, only one access M U0 is shown in the figure. Typically, an access point is a fixed station that communicates with the latter terminal 201220917, and the dragon access point can also be referred to as a base station or some other term. The user terminal can be fixed or mobile, and the user terminal can also be referred to as a mobile station, a wireless device, or some other terminology. At any given time, the access point U0 can communicate on the downlink and uplink with one or more user terminals 12G. The downlink key (i.e., the link) is the communication link from the access point to the user terminal, and the uplink key (i.e., the reverse (four) way) is the communication key from the user terminal to the access point. The user terminal can also communicate with the other user terminal at the same level. The system controller 1 3 0 is lighted to the access point, 廿 + j takes the point and provides coordination and control for the access point. Although some portions of the following disclosure will describe a user terminal 12 that is capable of communicating via a sub-space multiplex access (SDMA), for some aspects, the user terminal 12G may also include some unsupported SDMA user terminal. Thus, for the aspects, it can be configured to communicate with both the SDMA user terminal and the non-milk user terminal. This way, it is convenient to allow the old version of the user terminal ("traditional" station) to continue in the enterprise. In mid-deployment, this extends the old version of the user terminal and allows for the introduction of newer SDMA user terminals when deemed appropriate. System 100 utilizes multiple transmit antennas and multiple receive antennas for the so-called transmissions on the downlink and uplink. The access point 110 is equipped with ~ antenna 'and represents multiple inputs (5) for downlink transmission and a set of multiple user terminals 12G for uplink transmission (Μ0) β is selected for the downlink Multiple outputs for road transmission and multiple inputs for 10 201220917 uplink transmission. For pure SDMA, it is desirable if the data symbols of the K user terminals are not streamed in code, frequency or time by some means. If TDMa technology, different code channels using CDMA, disjoint subband sets using 〇FDM, etc. can be used for multiplex processing of data symbol streams, κ can be greater than each selected user terminal. Take a point to send user-specific data and/or receive user-specific data from an access point. Typically, each user terminal selected may be equipped with one or more antennas (i.e., 乂Θ1). The selected κ user terminals may have the same or different number of antennas. The SDMA system can be a time division duplex (TDD) system or a frequency division duplex (FDD) system. For TDD systems, the downlink and uplink share the same frequency band. For FDD systems, different frequency bands are used for the downlink and uplink. The MIMQ system (10) can also be transmitted using single or multiple carriers. Each user terminal can be equipped with a single antenna (e.g., to keep costs low) or multiple antennas (e.g., in a case where additional cost can be supported). If the user terminal i 2 共享 shares the same frequency channel by dividing the transmission/reception into different times #, wherein each time slot is configured by a different user terminal 12, the system 1 can also It is the system. The circle 2 is a block diagram of the access point 11〇 in the system 1〇〇 and the two user terminals 120„1 and 120χ. The access point u〇 is equipped with % antennas 224a to 224t. The user terminal i2〇 m is equipped with 个W antennas 2ma to 25; 2mu, and the user terminal 12 〇χ is equipped with u antenna 11 201220917 252xa to 252xue access point 11Q is a transmitting entity for the downlink and a receiving entity for the uplink Each user terminal is a transmitting entity for the uplink and a receiving entity for the downlink. As used herein, a "transmitting entity" is an independently operated device or intrusion capable of transmitting data via a wireless channel. And the "receiving entity" is an independently operated device or device capable of receiving data via a wireless channel. In the following description, 'subscript' means "downlink, subscript," means uplink, select ~ user terminals to transmit simultaneously on the uplink, and select "user terminals" to be in the downlink. Simultaneously sent on the road, 'can be equal to 0, not equal to H and; and heart' can be static value or can be changed for each row (4) ^ can use beam control or some at the access point and user terminal Other space processing technologies. On the uplink link, each user selected for uplink transmission, terminal 120 4 ' TX data s || 288 receives the traffic data from data source 286 and receives control data from controller 28A. The TX data processor 2:8 processes (eg, encodes, interleaves, and modulates) the user terminal's traffic information based on the encoding and tuning associated with the rate selected for the user terminal, and provides the data symbol Streaming. The TX spatial processor 29〇 performs spatial processing on the data symbol stream and provides a stream of transmitted symbols for the U antenna. Each transmitter unit (TMTR) 2M receives and (e.g., bends to analog, amplify, filter, and frequency upconverts) the respective transmit stream to generate an uplink signal. The U transmitter unit 254 provides an uplink signal to be transmitted from the antenna to the access point.

S 12 201220917, it is possible to perform (4) simultaneous transmission on the uplink for each user terminal. Each of the user terminal wipes performs spatial processing on the data stream stream of the user terminal' and transmits the streamer set of the user terminal to the access point on the upstream material. At access point U0, antennas 22 邛 224 接收 receive uplink signals from the user terminals that are transmitting on the uplink. Each antenna 224 provides the received signal to a respective receiver unit (RCVR) 222. Each receiver unit 222 is executed with a transmitter unit w

The program executed is the opposite of the program, and the money is received for the received symbol stream. The U-space processing H 240 performs receiver spatial processing on the symbol streams fixed from the ~ receiver units 222 & κ, and provides ~ recovered upper (four) way data symbol streams. Perform receiver spatial processing based on channel correlation matrix inversion (CCMI), minimum mean square error (MMSE), soft interference cancellation (si〇 or some other technique. Each recovered uplink data symbol (four) stream Is an estimate of the stream of data symbols transmitted by the corresponding instructor terminal. The RX f processor (4) processes the stream according to the stream rate of each recovered uplink data symbol stream (eg '胄' The decoded data is obtained, decoded, and decoded. The decoded data for each user terminal can be provided to data slot 244 for storage and/or to controller 23 for further processing. On the down key road, at the access point 11〇, the τχ data processor 21 receives the traffic information from the data source 208 for the routing terminal for the downlink transmission, and controls the control 23 〇 Receiving control data and

S 13 201220917 Program 234 receives additional information. Various types of data can be sent on different transmission channels. The Wisconsin TXB processor 21 processes (e.g., encodes, interleaves, and modulates) the user terminal's traffic data based on the rate selected for each user terminal. The X data processing H 2Π) provides the U downlink data symbolic flow of the user terminal. The TX spatial processor 22G performs spatial processing on the four downlink datagram symbol streams (such as described in the context of the present invention such as precoding or beamforming) and provides ~ transmit symbol string % for the antennas. Each transmitter unit 222 receives and processes a respective transmit symbol stream to produce a downlink signal. The fix transmitter unit 222 provides Ip downlink signals for transmission from the U antenna 224 to the user terminal. At each user terminal 12 〇 H antennas 252 receive one downlink signal from the access point n 。 . Each receiver unit 254 processes the received signal from the associated antenna 252 and provides the received symbol stream. The RX spatial processor 26 performs receiver spatial processing on the #u, m received symbol streams from the U-fix receiver unit (5) and provides the recovered downlink data symbol stream for the user terminal. Receiver spatial processing is performed according to CCMI MMSE or some other technique. The RX data processor 270 processes (e. g., demodulates, deinterleaves, and decodes) the recovered downlink data symbol stream to obtain decoded data for the user terminal. At each user terminal 120, channel estimator 278 estimates the downlink channel channel response and provides downlink channel estimates, which may include channel gain estimates, SNR estimates, noise variances, and the like. Similarly, 201220917 channel estimator 228 estimates the uplink channel response and provides an uplink channel estimate. Typically, the controller 28 of each user terminal remits a spatial filtering matrix for the user terminal based on the downlink channel response matrix for the user terminal. The controller 23 is based on a valid uplink. The channel channel response matrix is used to remit the spatial chopping matrix for the access point. The (4) H 28G of each user terminal can send feedback information to the access point (eg, downlink and/or uplink feature vector, eigenvalue) The controller 23A and the controller 28 also control the operation of the respective processing units at the access point 11A and the user terminal 120, respectively. Figure 3 illustrates that it can be used in the wireless device 3〇2. The various components, wherein the wireless device 302 can be used in an MIM® system 1. The wireless device 3.1 is an example of a device that can be configured to implement the various methods described herein. The wireless device 302 can be an access point 11 Alternatively, the user terminal 12 may include a processor 304 that controls the operation of the wireless device 302. The processor 304 may also be referred to as a central processing unit (CPU). The processor 304 provides instructions and data, wherein the memory 3〇6 may include both a ROM (ROM) and a random access memory (RAM). A portion of the S memory 306 may also include non-volatile randomness. Accessing suffixes (NVRAM) Typically, processor 〇4 performs logic and arithmetic operations based on program instructions stored in memory 306. The instructions in memory 〇6 may be executable to implement this document. The method described may also include a housing 3 〇 8 that may include a transmitter 310 and a receiver 312 to allow transmission and reception of data between the wireless device 3 〇 2 and a remote location. The device 31A and the receiver 312 15 201220917 may be combined into a transceiver 314. A single or multiple transmit antennas 3 16 may be attached to the housing 308 and electrically coupled to the transceivers 丨4. The wireless devices 〇2 may also include (not shown) a plurality of transmitters, a plurality of receivers, and a plurality of transceivers. The wireless device 302 can also include a signal detector 3丨8, which can be used to detect and quantize the transceiver. 3丨4 received signal The 彳§ Detector 3 18 can measure such signals as the total energy 'energy per symbol per carrier, power spectral density, and other signals. The wireless device 302 can also include a digital signal processor ( DSP) 320 is used when processing signals. The various components of the wireless device 302 can be coupled together via a busbar system 322, wherein the busbar system 322 can include power busbars, control signal busbars, and status in addition to the data busbars. Signal Bus. Exemplary Frame Structure For communication, the access point (AP) 110 and user terminal 120 in a wireless network (e.g., system 1 shown in Figure 1) may be based on certain frames. Structure exchange messages. Figure 4 illustrates an exemplary frame structure 400 for wireless communication, in accordance with certain aspects of the present disclosure. The frame structure 400 can include a preamble signal 401, a media access control (MAC) header 402, a frame body 404, and a frame check sequence (FCS) 406. The frame structure 400 can be used for control frames, data frames, and management frames in accordance with the IEEE 802.1 1 standard, although the control frame may not include the frame body. FIG. 4 also illustrates a generic frame format 408 for the MAC header 402. Universal frame format 408 (this general frame format is also the same as the data frame format) 16 201220917 8-bit byte group (octet), the 30 octets can include 30 octet decomposition For the following: octet 8-bit byte, used for frame control (FC) field 410 2 for picking up PJ /TP base A /1 1, ΑΑ Λ „

Or additional addresses for filtering the multicast frame to allow transparent mobility in IEEE 8G2.11 (such as Transmitter Address (TA), Receiver Address (RA), or Basic Service Set Identifier ( BSSID)). The addresses may be mac addresses of various network devices such as user terminal 12 or access point 110. Figure 5A illustrates an exemplary frame format 500 for a short control frame such as a request to send (RTS) frame. Such a control frame format 5 can include FC block 410, duration block 412, RA field 502, and TA block 504. As defined herein, RA typically refers to the MAC address to which the frame is sent via the wireless medium. The RA can be a single address or a group address. As defined herein, the TA typically points to the MAC address of the station of the wireless medium transmission frame. 5B illustrates another exemplary frame format for a control frame such as a CTS frame or an acknowledgment (ACK) frame. 5 10 such a control frame format 510 is similar to FIG. 5A. The control frame format 500 is in the middle, but such a control frame format 510 does not have a TA shelf 504. 201220917 FIG. 5C illustrates a management frame format 520. In addition to the pc block 410 and the duration block 412, the management frame format 520 may also include a DA field 5 22, an SA block 524, a BSSID block 526, and a sequence control block 420. FIG. 6A illustrates an exemplary MAC. The address structure is 6〇〇. The MAC address may include 6 octets (48 bits), wherein the first 3 octets may identify the organization that issued the MAC address and is referred to as an organization unique identifier (OUI) ) 602. The last three octets 604 are specific to the network interface controller (NIC), and the last three octets can be allocated by the published group in almost any way, the last three The 8-bit byte is bound by the singularity. In the MAC address structure 600, the least significant bit (LSB) of the highest octet of bytes can be considered to be an individual/group (I/G) address bit 6 〇 6. The next LSB of the 婊8-bit byte can be considered a general/local management address bit 608. Figure 6B shows an exemplary form of the exemplary MAC address AC-DE-48-00-00_80 (in hexadecimal), where the LSBs in each byte group are transmitted first. With this transmission order, the I/G address bits 6〇6 and the U/L management bits are respectively the first bit and the second bit transmitted in the wireless medium. An exemplary compatible legacy frame IEEE 802.1 1 ac is a modified version of the IEEE 802.1 1 standard to enable higher throughput in 802.il networks. Higher throughput is achieved via some measures such as MU-MIMO (Multiple User Multiple Input Multiple Output) and 8 〇 MHz or 201220917 channel bandwidth. IEEE is also known as Ultra High Throughput (VHT). The new gossip VHT capable device can be controlled by the information of the gift...:, with additional or different support such as Ua and 802 n. However, 'traditional devices (ie, 'n, etc. for IEEE 802.11栌) Accurate earlier revisions of the device) are not explained. What U needs for some of the control frames is the technology and device used to define the control »fl box for the 802.11ac, which can be carried in the traditional control frame. In the absence of information, there is no information, but the VHT control frame can be interpreted by traditional methods in the traditional way. Figure 7 illustrates an exemplary act 70 of processing a received frame based on a frame-based MAC address from the perspective of a receiving entity (e.g., user terminal 12 or access point (10)). ... 〇 2, the operation may begin by receiving a first frame, the first frame including an indication of the first mac address. At some point, the receiving entity can process (e.g., interpret and/or parse) the received frame based on the first prison address. Processing the received first frame may include interpreting the first frame as a conventional frame or a super high throughput (ν Η τ) frame according to the first MAc address. As used herein, "traditional frame" generally refers to a modified version of the IEEE 802.il standard that conforms to the 纟8〇2iiac revision, and "νΗτ frame" generally refers to compliance with IEEE. 8〇2 u standard 8〇211 buckle modified version (or subsequent revision) frame. For some aspects, at 706, the receiving entity can receive the second frame,

S 19 201220917 The second frame includes an indication of the second MAC address, wherein the second mac address is different from the first MAC address. In the past, the receiving entity may process the received second frame based on the second MAC address, such that the processing of the second frame is different from the processing of the first frame. For some aspects, the receiving entity can receive the management frame, and the management frame sends the first MAC address by signal (that is, the receiving entity: the frame including the indication of the first MAC address is to be Sending to the receiving entity such that the receiving entity will know to process the frame received with the first MAC address in a manner different from the frame received using the second MAC address. Some aspects of the present content include sending a new 8〇2 Uac-specific control frame to a second mac address associated with the same device. The frame received by the first MAC address of the device can be processed as a typical conventional frame, for example according to the IEEE 〇2.Ua revision or the 802 lln revision of the IEEE 8〇2 u standard. Process it. However, the frame received with the second MAC address can be processed according to different rules as defined in 802.1UC (or a later revision of the IEEE 8〇2 u standard). The second MAC address can be transmitted in the RA block 5〇2 of the control frame, such as a request to send (RTS) frame, a transmit to send (CTS) frame, or an acknowledgment (ACK) frame. The second MAC address may also be sent in the DA field 522 of the management frame or one of the address fields of the data frame (eg, address 丨Block 4 i 4 or Address 3 418). For some aspects, the second MAC address can be the second unique global MAC address associated with the device.

S For other aspects, the first MAC address and the second MAC address may be the same, for example, only one or two bits. For example, the second MAC address can be formed by setting Dance 1 of the individual/group (I/G) address bit 6〇6 of the first MAC address such that the second MAC address is the first MAC bit. The group address version of the address. In other words, the I/G address bit 606 of the first MAC address is zero. In this way, the first MAC address differs from the second MAC address only in one address bit. As another example, the second MAC address can be formed by setting the general/local (U/L) management address bit 608 of the first MAC address to 1 such that the second MAC address is the first The local management version of the MAC address. For some aspects, the two ideas can be combined. For example, the second MAC address can be formed by setting the I/G address bit 606 of the first MAC address to 1 and setting the U/L management address bit 608 of the first MAC address to 1. The local management group address version is such that the second MAC address is the first MAC address. For some aspects, the second MAC address can be formed by flipping the least significant address bit, since the U/L management address bit 608 may not change using this method, so this means that the device has two A global management MAC address. For other aspects, where the first MAC address always has the convention of setting the least significant bit of 0, the second MAC address can be formed by setting the least significant address bit to one. Alternatively, where the first MAC address always has a convention of setting the least significant bit of one, the second MAC address can be formed by setting the least significant address bit to zero.

In addition to the address bits mentioned above, the second mac address can also be formed by flipping the predetermined address bits of the first MAC 21 201220917 address. For other aspects, in the case where the predetermined address bit in the first MAC address is always an agreement of 〇, the predetermined address bit of the first MAC address can be set to 1 to form the first Two MAC addresses. Alternatively, in the case where the predetermined address bit in the first MAC address is always a convention of 1, the second mac may be formed by setting the predetermined address bit of the first MAC address to 0. Address. For some aspects, the second MAC address can be signaled in the management frame. The second MAC address can be included as an information element (IE) in the management frame. The second MAC address does not need to be associated with the first MAC address via the transmission of the management frame with the second MAC address. In operation, the transmitting entity may send a frame to the second MAC address of the target receiving entity to indicate that additional information is hidden in the frame, or to indicate that the frame should be parsed or processed in a different manner. The receiving entity may parse or process the frame received using the second mac address in a manner different from the frame received using the first MAC address, even if both MAC addresses belong to the receiving entity. The first MAC address may be the address provided for the purpose of address resolution (i.e., when the address is needed to resolve the communication protocol (ARp) using the address). For some aspects, the first MAC address can be used with a data frame, and the first mac address can be used with a control frame such as an rts frame, a CTS frame, or an ACK frame. The first MAC address can be used as the source address (S a ) for any transmission. The second MAC address may be remitted from the first MAC address via a defined rule (eg, the predetermined address bit of the first MAC address is set to work) 22 201220917, or may be displayed in the management frame The second MAC address is transmitted, both of which are described above. For some aspects, the information sent in a VHT-specific control frame (eg, an RTS or CTS frame) may include information about the channel on which the control frame is sent or on which the control frame is received. Channel information. In an IEEE 802.1 1ac network, the basic channel unit is 20 MHz wide. Each PPDU (Physical Layer Conversion Protocol (PLCP) Protocol Data Unit) can span 20, 40, 80, or 160 MHz (that is, 1, 2, 4, or 8 20 MHz channels). For some aspects, such bandwidth information can be encoded in two or more bits (e.g., two or more LSBs) in the duration field of the MAC header. An exemplary frame exchange using a compatible conventional frame between STA A and STA B is illustrated in Figures 8-11. In the figures, "A1" represents the first MAC address of STA A, "A2" represents the second MAC address of STA A, "B1" represents the first MAC address of STA B, and "B2" represents The second MAC address of STA B.

I Figure 8 illustrates an RTS frame 802 transmitted by STA A to the second MAC address B2 of STA B as the target recipient. The RTS frame 802 can include information such as VHT-specific information that does not exist in a conventional RTS frame. STA B can parse the received RTS frame 802 in a different manner than typical analysis of a conventional RTS frame to extract the information. In response to receiving the RTS frame 802, the STA B can be connected as a target.

The second MAC address of the STA A of the receiving party transmits a CTS frame 804. CTS 23 201220917 frame 804 may also contain information such as VHT-specific information that does not exist in conventional CTS frames. After receiving the CTS frame 804, STA A may use the first MAC address to transmit a data frame 806 indicating that the data frame should be performed by STA B in the same manner as a typical analysis of a conventional data frame. Analysis. To confirm receipt of data frame 806, STA B may send an ACK frame 808, such as a block acknowledgment (BA), to the first MAC address that is the target receiver 蚱STA A. Figure 9 illustrates an RTS frame 802 sent by STA A to STA B's second MAC address B2, followed by a CTS frame 902 sent by STAB to STA A's first MAC address A1. Unlike the CTS frame 804 of Figure 8, the CTS frame 902 of Figure 9 may only include information present in a conventional CTS frame. The RTS/CTS exchange may be followed by a data/ACK exchange between the first MAC address of STA A and the first MAC address of STA B as described above with respect to Figure 8. Figure 10 illustrates an RTS/CTS exchange between second MAC addresses as described above with respect to Figure 8. Thereafter, the STA A may send a data frame 1002 to the second MAC address of the STA B, indicating that the data frame includes information that does not exist in the traditional data frame. In response to receiving the data frame 1002, the STA B may parse the data frame 1002 to extract the data containing the new information, and may then send an ACK frame 1004 to the second MAC address of the STA A, and the ACK box 1004 is displayed. Contains information that does not exist in the traditional ACK frame. Figure 11 illustrates the data exchange between the second 24 201220917 mac address of STA A and the second MACMi address of STA B as described above with respect to Figure 10. In this scenario, there is no need to perform an RTS/CTS exchange before the data/ACK exchange. In an exemplary transmitter scenario, the data frame can be sent to a specific receive: address (the RAVMAC layer can determine that the RTS frame should be prior to the transmission, determine that the device with the RA supports 802.1 lac, and decides on the RTS The frame will contain information specific to 8G2.11ae. The MAC layer can form an 802.1 1仏-specific RTS frame and include the second MAC address of the target receiver. The first mac address can be flipped through the target receiver. a specific bit in the frame to form a second MAC address. In an exemplary receiver scenario, the STA may receive an RTS frame destined for a second address. The 豸STA may then treat the received predicate as specific to 8〇2.llac$ RTS for parsing. For example, the rts frame may contain information about the channel on which the RTS frame is sent. The various operations of the methods described above may be performed by any suitable component capable of performing the corresponding function. The component may include various hardware and/or software components and/or modules, and the white, the package is not limited to circuits, special application integrated circuits (ASICs) or processors. Usually, in the presence of In the case of the illustrated operation, 'the operations may have corresponding equivalent functional component elements using similar numbers. For example, 'operation # 700 illustrated in FIG. 7 corresponds to the member 700A illustrated in FIG. 7A. For example, 'for The transmitted component may include an emission g-single such as the access point 110 illustrated in FIG. 2; a ro 222, a transmitter single 7G 25 4 of the user terminal (10) depicted in FIG. 2, or the wireless device 3 illustrated in FIG. Transmitter of 〇2 transmitter 25 201220917 31〇. The means for receiving may include a receiver unit 222 such as access point 110 illustrated in Figure 2, a receiver of the user terminal depicted in Figure 2 Unit 254 or a receiver of the receiver (1) of the wireless device 3〇2 shown in Figure 3. The means for processing may include a processing system 'The processing system may include one or more processors, such as in Figure 2 The illustrated RX data processor 27 of the user terminal 120 and/or the controller or access point u" RX data processor 242 and/or controller 230 can be used to calculate and calculate , processing, exporting, investigating, querying (eg 'in' , in the database or other data structure, inquiries, etc. Similarly, "decision" may include receiving (for example, receiving information), accessing (for example, 'accessing data in memory'), etc. Similarly, "decision" may This includes solving, selecting, selecting, establishing, etc. As used herein, a phrase representing at least one of the items in the list of items refers to any combination of the items, including a single. For example, in "., ... "At least one" is intended to cover: a;,;c;...;...; 厶 and and fl, 6 and C. A general purpose processor, digital signal processor (DSP), or a digital signal processor (DSP), which performs the functions described herein, may be used. Special application integrated circuits (Asi〇, field programmable f (four) columns (FPGA) or other programmable logic devices (PLDs), individual gates or transistor logic, individual hardware components or M b纟 to implement or execute this document Various exemplary logic blocks, modules, and circuits are disclosed. The general purpose processor may be a processing benefit, or the processor may be any commercially available hacker, controller, microcontroller or state machine. The processor can also be implemented as a combination of computing devices'''''''''' 1 The steps of the method or algorithm described in connection with the disclosure herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. The software modules can be located in any form of storage medium known in the art. Some examples of storage media that can be used include random access 5 memory (salt), read-only memory (_), flash memory, coffee (10) memory, 〇M memory, temporary storage , hard drive, removable disk, CD-ROM, etc. The software module can include a single instruction or multiple instructions and is distributed among several different code slices and distributed among multiple storage media. The storage medium can be lightly coupled to the processor, (4) enabling the processor to read information from the storage medium, and the storage medium writing information. Alternatively, the storage (10) can be processed _ components. The methods disclosed herein include one or more steps or actions to perform the described methods. The method steps and/or actions can be interchanged with one another without departing from the scope of the claims. In other words, unless a specific order of steps or actions is specified, the specific steps and/or actions may be changed in a lesser order than the scope of the claims. If implemented in a suspicion, the exemplary hard miscellaneous settings can include two

S 27 201220917 Processing system in the node. The processing system can be implemented using a busbar architecture. The bus bar can include any number of interconnected bus bars and bridges depending on the specific application of the processing system and overall design constraints. The bus bar can connect the various circuits together, each of which includes a processor, machine readable media, and a bus interface. Among other things, the bus interface can be used to connect the network adapter to the processing system via the bus. Network adapters can be used to implement the signal processing functions of the PHY layer. In the case of an access terminal (see Figure 1), a user interface (e.g., keypad, display, mouse, joystick, etc.) can also be connected to the bus. The bus bar can also be connected to various other series such as timing sources, peripheral devices, voltage regulation H, power management circuits, etc., which are well known in the present invention, and therefore will not be further described. The device can be responsible for managing bus processing and normal processing, including executing software stored on machine readable media. The processor can be implemented with one or more general purpose processors and/or special purpose processors. Examples include microprocessors, microcontrollers, DSP processors, and other circuits capable of executing software. Software should be interpreted broadly to refer to instructions, materials, or combinations thereof (4), and = no 4 software, lemma, mediation software, microcode, hardware descriptors. _ By way of example 'machine readable media can include RAM (random access memory), body), W η, 〇M (read-only memory, programming read-only memory), EPRrom (can be erased: programming Read-only memory), EEPR〇M (electronic; = appropriate storage medium, or any machine...disc or any other combination. Machine 15 can read media can body 28 201220917 Now computer program products in the beta mine is hard Body packaging materials. Part of the processing system, such as those in the field = Separation: Easy to understand, the machine readable medium or any part of it can be: externally. By way of example, the machine can read The medium can be wired, the carrier modulated by the data, and/or the electrical power separated from the wireless node: the product can be stored by the processor via the bus interface or otherwise, the machine can read the media or any of its options In the processor, for example, it can be "integrated to the case." 疋 with cache memory and / or universal register floor processing system can be configured as a general (four) system, the universal system has a processor Features One or more microprocessors and external memory providing at least a portion of the machine readable medium, all connected to other support circuits via an external bus structure. Alternatively, the processing system can utilize an ASIC (Special Application Integrated Circuit) To achieve, the Xiao ASIC has a processor, a bus interface, a (four) interface (in the case of an access terminal), a support circuit, and at least a portion of the machine readable medium integrated into a single wafer, or may utilize - or multiple 0 FPGA (Field Programmable Closed Array), PLD (Programmable Logic Device), Controller, State Machine, Gate Control Logic, Individual Hardware Components, or any other suitable circuit, or capable of performing the operations described throughout this document Any combination of various functional circuits is implemented. Those skilled in the art will recognize how to best implement the functions of the described processing system depending on the particular application and the overall design constraints imposed on the overall system. 29 5 201220917 Machine The reading medium may include a plurality of software modules. The software mold cylinders include "when processed by Various distributions are executed when the instruction is executed. By way of example: storing or bypassing multiple storage devices to be charged from the hard monument, the software module can be loaded from the hard disk into the RAM when the trigger event occurs. During the execution of the module, the processor can process the instruction 砒I, 矾仃 during the period. Then, a memory is taken to increase the access speed. The cache memory line can be processed by the carrier slot. Execution. When j general temporary storage understands that this function is implemented by the function, it should be implemented. U processing 15 can be implemented in the software if it is implemented in the software module. These functions are stored as _ or multiple or code transferred to computer readable media. Computer readable 2 includes computer storage media and communication media ', computer program from one location to the 'media' including media to facilitate location transfer Any media to another location. Storage = 2 is any available media that can be accessed by a computer. By way of example two: the way of making 'such computer readable media can include RAM, EPROM, CD Na or other optical disk storage, disk storage his magnetic storage device, or can be used to carry or store with finger = data structure The expected program of the form can be stored by the computer == In addition, any connection can be appropriately called electric twisted pair 'If the software is made of (four) axis cable, fiber optic wire gauge, ^ line, digital subscriber line (DSL) Or wireless technologies such as infrared (IR), power and microwaves sent from websites, feeders or other remote sources 30 201220917, coaxial cable, fiber optic cable, twisted pair, DSL or such as infrared, Wireless technologies such as radio and microwave are included in the definition of the media. As used herein, a magnetic disk and a compact disk include a compact disk (cD), a laser disk, a compact disk, a digital versatile disk (DVD), a floppy disk, and a Blu-ray disk, wherein the disk usually reproduces data magnetically, and the disk uses laser light. Optically reproducing data. Thus, in some aspects, computer readable media can include non-transitory computer readable media (e.g., tangible media). Additionally, for other aspects, computer readable media may include temporary computer readable media (e.g., 'signals'). Combinations of the above should also be included in the scope of computer readable media. ‘So some aspects may include computer program products for performing the operations provided herein. For example, such a computer program product can include a computer readable medium having instructions stored thereon (and/or encoded) that can be executed by one or more processors to perform the operations described herein. For some aspects, the eMule program product may include packaging materials. In addition, it is to be understood that the modules and/or other suitable components for performing the methods and techniques described herein can be downloaded and/or obtained by the user terminal and/or the base, if applicable. For example, such a device can be surfaced to a feeding device to facilitate delivery of the components used to perform the methods described herein. Alternatively, the various methods described herein may be provided via a stray component (eg, RAM, r〇m, physical storage media such as a compact disk (CD) or floppy disk, etc.] such that the user terminal and/or The base station can obtain the various methods after the storage device (4) is attached to the device or the storage device is provided to the device. Further, any other suitable technique for providing the device with the method 31 201220917 and techniques described herein can be utilized. It should be understood that the claims are not limited to the alternative configurations and elements illustrated above: in terms of the arrangement, operation, and details of the methods and arrangements described above, without departing from the scope of the claims Make various modifications, changes, and changes. BRIEF DESCRIPTION OF THE DRAWINGS In order to explain the above-mentioned features of the present invention in detail, by referring to the various aspects of the present invention (wherein the drawings are in the drawings), it is possible to obtain a more specific description of. It should be noted, however, that the drawings are only illustrative of the typical aspects of the present invention and therefore should not be construed as limiting the scope of the present disclosure, as the description may permit other equally effective aspects. Figure 1 illustrates a diagram of a wireless communication network in accordance with certain aspects of the present disclosure. 2 illustrates a block diagram of an exemplary access point and user terminal in accordance with certain aspects of the present disclosure. 3 illustrates a block diagram of an exemplary wireless device in accordance with certain aspects of the present disclosure. Figure 4 illustrates an exemplary frame structure for wireless communication in accordance with certain aspects of the present disclosure. 5A-5C illustrate exemplary frame formats for control frames and B-frames for media access control (mac) heads in a frame structure, in accordance with certain aspects of the present disclosure. 32 201220917 FIG. 6A illustrates an exemplary MAc address structure in accordance with certain aspects of the present disclosure. FIG. 6 illustrates an exemplary form of exemplary MAC address in accordance with certain aspects of the present disclosure, wherein each bit is transmitted first. The least significant bit (LSB) in the tuple. Figure 7 illustrates an exemplary operation of a frame for frame-based MAC address processing reception from the perspective of a receiving entity, in accordance with certain aspects of the present disclosure. FIG. 7A illustrates exemplary components for performing the operations illustrated in FIG. 7. Figures 8-11 illustrate exemplary frame exchanges between two wireless devices using a compatible conventional control frame, in accordance with certain aspects of the present disclosure. [Main component symbol description]

S 33

Claims (1)

201220917 VII. Patent Application Range: u A device for wireless communication, comprising: a receiver configured to receive a first frame, the first frame comprising a first media access control ( An indication of the MAC address; and a processing system configured to parse the received first frame based on the first mac address. 2. The apparatus as recited in claim 1, wherein the processing system is configured to interpret the first frame as a conventional frame or as an ultra-high throughput based on the first MAC address (and) The frame parses the received first frame. The apparatus as recited in claim 1, wherein the processing system is configured to extract a crisp E 8 () 2 heart correction version from the first panel by the Electrical and Electronics Engineers Association The information supported by the later revisions resolves the received first frame. May 1 does not describe the 兮. Κα Τ Τ 地 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 被 解析 解析 解析 解析 解析 解析 解析 解析 解析 解析 解析 解析 解析 解析 解析 解析 解析 解析 解析 解析 解析The received first frame. 5. The device as recited in claim 4, wherein the two or two ws of the first frame of the first frame are indicated by the upper least significant bits (LSBs) S: 34 201220917 . 6. The device of claim 1, wherein the receiver is configured to receive a second frame, the second frame comprising an indication of a second MAC address, wherein the second MAC address is different At the first MAC address, and wherein the processing system is configured to parse the received second frame based on the second MAC address, such that the parsing of the second frame is different from the first message The _ analysis of the box. 7. The device as recited in claim 6, wherein the processing system is configured to pass the IEEE 8〇2.lla revision based on the Institute of Electrical and Electronics Engineers (IEEE) 8〇2u standard or the 8〇2 lln The modified version parses the second frame to parse the second frame. 8. The device as recited in claim 6, wherein the first frame comprises a control frame. 9. The device of claim 8, further comprising a transmitter, wherein the control frame includes a request to send (RTS) frame, wherein the transmitter is configured to echo back to the received RTS frame The other device sends a CTS message frame, and wherein the second frame includes a data frame sent by the other device in response to the CTS frame. 10. The device as recited in claim 6, wherein the first MAC address differs from the first S 35 201220917 two MAC address by only one address bit. 11. The device as recited in claim 10, wherein the one address bit comprises a body/group (I/G) address bit, a generic/local (U/L) management address bit or The least significant address bit. 12. The device as recited in claim 1, wherein the receiver is configured to receive a management frame, the management frame for notifying the device that the frame including the indication of the first MAC address is Sent to the device. 13. A method for wireless communication, comprising the steps of: receiving a first frame at a device, the first frame comprising an indication of a first media access control (MAC) address; The received first frame is parsed based on the first MAC address. 14. The method of claim 13, wherein the step of parsing the received first frame comprises the step of: interpreting the first frame as a legacy frame based on the first MAC address Or interpreted as a super high throughput (VHT) frame. 15. The method of claim 13, wherein the step of parsing the received first frame comprises the step of: extracting from the first frame by the Institute of Electrical and Electronics Engineers (IEEE) 802.1 1 standard The first message of the information supported by the iEEE 802.1 lac revision or later 36 201220917 revision 16. The steps of the method box described in claim 13 include the following steps - one of the received frames = the first message The box extracts information about the first or more channels on which the channel was sent. 17. As stated in Request 16 - the continuation of the door shed "This information is indicated by the first frame (LSB" of two or more least significant bits (LSBs). For example, " The method of claim 13, further comprising the steps of: - a second frame, the second frame comprising a second address, wherein the second MAC address is different from the first - mac address And parsing the received second frame based on the first MAC address, so that the parsing of the second frame is different from the parsing of the first frame. Step 19. The party as recited in claim 18 includes the following steps: Resolving the block based on the revised version of the box 8〇2.Ua or the 8〇2ΐιη revision of the Institute of Electrical and Electronics Engineers (ieee) standard The second method S 37 201220917 20. The method of claim 8, wherein the first frame comprises a control frame. 21. The method of claim 2, further comprising the steps of: Sending a permission to send (cts) message to other devices in the received control frame. The control frame includes a request to send (rts) frame, and wherein the second frame includes a data frame sent by the other device in response to the CTS frame. 22. As claimed in claim 18 The method, wherein the first mac address differs from the second MAC address by only one address bit. 23. The method of claim 22, wherein the one address bit comprises: Individual/group (I/G) address bit, a generic/local (muscle) management address bit, or a least significant address bit. 24. The method as recited in claim 13 further includes The following steps: Receive-management frame 'The management frame is used to notify the device that the frame including the indication of the first MAC address is to be sent to the device. 25. A device for wireless communication The method includes: means for receiving a - frame, the frame includes an indication of a first media access control (MAC) address; and, for parsing based on the first MAC address S 38 201220917 member of the received first frame. 26. The device as recited in claim 25, The means for parsing the received first frame is configured to: interpret the first frame as a traditional frame or as an ultra high throughput (VHT) message based on the first MAC address 27. The method of claim 25, wherein the means for parsing is configured to: remove the electrical device from the first frame by extracting from the first frame The information received by the Society of Electronics Engineers (Caf) 802.U standard 802.2 iUc revision or later 乂 genuine support to resolve the received first frame. 28. The device as recited in claim 25, wherein the means for parsing is configured to be parsed by the first frame extracted from the first frame. The received first frame. 29. As stated in claim 28, Ganshan. ψ ^ _ where the information is from the first frame A - duration of the rTQT3, ^ net or more than two least significant bits I LSBs) to indicate. 3. The device described in claim 25 is formed, and the component for receiving is received by S 39 201220917 to receive a second frame, the second frame including the pair - the second mac address. Instructing, wherein the second mac address is different from the first MAC address, and wherein the means for parsing is configured to: parse the received second frame based on the second MAC address, such that The parsing of the second frame is different from the parsing of the first frame. 31. The apparatus of claim 30, wherein the means for parsing is configured to: via the IEEE 802.11a revision based on the Institute of Electrical and Electronics Engineers (IEEE) 8〇2u standard or the 802. The lln revision parses the second frame to resolve the second frame. 32. The device as recited in claim 3, wherein the first frame comprises a control frame. 33. The apparatus as recited in claim 32, further comprising: a means for transmitting, wherein the control frame includes a request to send (RTS) frame, wherein the means for transmitting is configured to respond to the location The received RT$ frame sends a CTS message to other devices, and wherein the second frame includes a data frame sent by the other device in response to the CTS frame. 34. The apparatus of claim 3, wherein the first MAc address differs from the 40 201220917 first MAC address by only one address bit. 35. The apparatus of claim 34, wherein the one address bit comprises: a body/group (〗 〖G) address bit, and a generic/local (U/L) management address bit. Or a least significant address bit. 3. The device as recited in claim 25, wherein the means for receiving is configured to: receive a management m frame, the management frame for notifying the device of the indication of the first mac address The frame is to be sent to the device. 37. A computer program product for wireless communication, the computer program product comprising a computer readable medium containing instructions executable to: receive a frame at a device, the frame comprising An indication of a media access control (MAC) bit bee; and parsing the received frame based on the MAC address. A wireless node comprising: at least one antenna; a receiver configured to receive a frame via the at least one antenna, the frame comprising a media access control (MAC) address And an processing system, the processing system configured to resolve the received frame based on the MAC address. 42